When seeking alternative terms for the word "includible", one may consider several options. A suitable synonym could be "incorporable", which suggests the ability to be encompassed or integrated within a larger scope. Similarly, "comprisable" can be used to denote elements that can be included or contained. Another possible synonym is "encompassable", emphasizing the idea of being able to be covered or enclosed within a given context or category. Additionally, one may employ the term "assimilable" to convey the notion of something that can be absorbed or comprehended within a larger whole. In summary, these alternative words provide diverse options to effectively replace "includible" in various contexts.